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Electronic apparatus housing cover, electronic apparatus, and projector

a technology for electronic equipment and housing covers, which is applied in the field of electronic equipment housing covers, electronic equipment, and projectors, and can solve the problems of reducing the sound pressure of the sound output of the speaker device and reducing the sound quality of the speaker devi

Inactive Publication Date: 2009-07-02
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008]According to the electronic apparatus housing cover, the acoustic effect section provided to the cover main body executes the acoustic effect processing on the sound output from the speaker device. Thus, when attaching the electronic apparatus housing cover to the housing of the electronic apparatus, it becomes possible to protect the connection terminal, and at the same time, to suppress lowering of the sound pressure and degradation in the sound quality of the sound, which is output by the speaker device, with the acoustic effect processing.
[0010]According to such an electronic apparatus housing cover, the front loaded horn is provided to the acoustic effect section. Thus, when attaching the electronic apparatus housing cover to the electronic apparatus housing, it becomes possible to reinforce the middle and high-frequency band of the sound output by the speaker device. Here, the front loaded horn denotes a horn attached to the front face of the speaker device.
[0012]According to such an electronic apparatus housing cover, the acoustic effect section forms the Kelton type enclosure having a port. Thus, when attaching the electronic apparatus housing cover to the electronic apparatus housing, it becomes possible to reinforce the low-frequency band of the sound output by the speaker device. Here, the Kelton type enclosure having a port denotes an enclosure having a box provided with a port and formed on the front face of the speaker device.
[0016]According to such an electronic apparatus, since the electronic apparatus is equipped with the electronic apparatus housing cover described above, the same advantages as described above can be obtained.
[0018]According to such a projector, since the projector is equipped with the electronic apparatus housing cover described above, the same advantages as described above can be obtained.

Problems solved by technology

In the case in which the electronic apparatus housing cover is attached to the rear face of the housing of such a projector, the speaker device is covered by the cover, and there arises a problem that the sound pressure of the sound output from the speaker device is lowered, or the sound quality thereof is degraded.

Method used

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  • Electronic apparatus housing cover, electronic apparatus, and projector
  • Electronic apparatus housing cover, electronic apparatus, and projector
  • Electronic apparatus housing cover, electronic apparatus, and projector

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0034]FIG. 1 is a perspective view of a projector according to a first embodiment, viewed from the front side thereof. As shown in FIG. 1, the projector 1 has a configuration in which the main body of the projector 1 is covered by a housing 10, and a front face 10a of the housing 10 is provided with a projection lens 11 as a projection optical system. Further, on the top face of the housing 10, there is disposed an input operation section 12.

[0035]FIG. 2 is a perspective view of the projector and the projector housing cover viewed form the rear side thereof.

[0036]FIG. 3 is a perspective view of the projector housing cover viewed from the front side thereof.

[0037]In FIG. 2, the projector housing cover 2 is disposed at a position opposed to the rear face 10b of the housing 10 of the projector 1.

[0038]As shown in FIG. 2, the projector 1 is provided with a power supply terminal 13, a connection terminal group 14, a sound emission opening 15 on the rear face 10b of the housing 10.

[0039]T...

second embodiment

[0073]Hereinafter, a second embodiment will be explained.

[0074]The projector housing cover according to the present embodiment is provided with a partition plate and a port forming a Kelton type enclosure with a port, instead of the front loaded horn 22 of the projector housing cover 2 according to the first embodiment. The other constituents are the same as those of the first embodiment.

[0075]The projector housing cover will be explained with reference to FIGS. 7, 8, 9A, and 9B.

[0076]FIG. 7 is a perspective view of the projector with the projector housing cover according to the second embodiment attached thereto.

[0077]FIG. 8 is a perspective view of a projector housing cover according to the second embodiment, viewed from the front side thereof.

[0078]FIGS. 9A and 9B are cross-sectional diagrams of the projector with the projector housing cover according to the second embodiment attached thereto. FIG. 9A is the cross-sectional diagram thereof viewed from the upper side, and FIG. 9B ...

third embodiment

[0088]Hereinafter, a third embodiment will be explained.

[0089]The projector housing cover according to the present embodiment is provided with a passive radiator forming a Kelton type enclosure with a passive radiator, instead of the port 33 of the projector housing cover 3 according to the second embodiment. The other constituents are the same as those of the second embodiment.

[0090]The projector housing cover will be explained with reference to FIGS. 10, 11, 12A, and 12B.

[0091]FIG. 10 is a perspective view of the projector with the projector housing cover according to the third embodiment attached thereto.

[0092]FIG. 11 is a perspective view of a projector housing cover according to the third embodiment, viewed from the front side thereof.

[0093]FIGS. 12A and 12B are cross-sectional diagrams of the projector with the projector housing cover according to the third embodiment attached thereto. FIG. 12A is the cross-sectional diagram thereof viewed from the upper side, and FIG. 12B is ...

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PUM

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Abstract

An electronic apparatus housing cover is adapted to be attached to a housing of an electronic apparatus having a connection terminal to be connected to an external apparatus via a connecting cable, and a speaker device adapted to output a sound, and cover the connection terminal and the speaker device. The housing cover includes a cover main body having a box like shape, having an opening on a face opposed to the housing, and having an insertion passage section through which the connecting cable is inserted, and an acoustic effect section provided to the cover main body, and adapted to execute an acoustic effect processing on a sound output from the speaker device.

Description

BACKGROUND[0001]1. Technical Field[0002]The present invention relates to an electronic apparatus housing cover, an electronic apparatus, and a projector equipped with an electronic apparatus housing cover.[0003]2. Related Art[0004]In the past, in a field of an electronic apparatus (e.g., a projector), there is proposed an electronic apparatus housing cover adapted to cover a rear face side of the electronic apparatus housing in an untidy state with connecting cables coupled to a group of connection terminals and so on to protect the connection terminals, and further improve the appearance of the electronic apparatus housing itself (see JP-A-2004-207400).[0005]However, in projectors, for example, there is sometimes disposed a speaker device in addition to the connection terminals on the rear face of the housing. In the case in which the electronic apparatus housing cover is attached to the rear face of the housing of such a projector, the speaker device is covered by the cover, and t...

Claims

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Application Information

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IPC IPC(8): H04R1/02G03B31/00
CPCG03B31/00H04R1/028H04R1/30H04R1/2842H04R1/2834
Inventor HAYASHI, NAOKI
Owner SEIKO EPSON CORP
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